Feature request: register .lyl as a file type Body:

[Joepic9]

Layerling is a browser-based CAD tool whose native project files use the .lyl extension. There is currently no way to double-click a .lyl file in the OS file manager and have it open in Layerling. This request asks for OS-level file association support via the web app manifest.

Proposal:
Add a file_handlers entry to the web app manifest declaring .lyl (with a custom MIME type such as application/vnd.layerling.lyl) and an action URL that loads the start page and consumes the file through the (https://developer.mozilla.org/en-US/docs/Web/Progressive_web_apps/Manifest/Reference/file_handlers). This would let an installed PWA register as the default handler on Windows, macOS, and Linux — the same behavior a native app provides.

Additional enhancement:
Since .lyl files are ZIP containers under the hood, the handler could unzip and validate the archive on open, surfacing corruption before the design loads.

[henmedia]

@Joepic9 Good idea, and it fits the installed app well. I have added it: the manifest now declares file_handlers for .lyl, and a double click on a design in the file manager opens it in the installed layerling (Chrome or Edge), with Ctrl+S saving back into that file. It will be in the next update.

The check you suggest for the ZIP already happens: a damaged or incomplete .lyl is rejected with an error before anything is loaded.

If you'd like to support the project, a small donation is very welcome. 🙂

[henmedia]

@Joepic9 this is out in 1.92.2: with layerling installed as an app (Chrome or Edge), a double click on a .lyl file opens it. The system asks once which program to use.

[Joepic9]

On Android the double-click / file handler for .lyl does not work (even with the app installed).
Please update the 1.92.2 release notes for this feature to note that it is desktop Chrome/Edge only. On Android use “Open a design or import geometry” instead.

[henmedia]

@Joepic9 thank you for testing it on Android, and you are right: the file association only works for the installed app in Chrome or Edge on a computer. I changed the notes of the 1.92.2 release, the guide and the What's new card accordingly: on Android a design is opened with "Open a design or import geometry" on the start page.